EP4068593A3 - Absolute position sensing system for stepper motor mechanism - Google Patents

Absolute position sensing system for stepper motor mechanism Download PDF

Info

Publication number
EP4068593A3
EP4068593A3 EP22165390.0A EP22165390A EP4068593A3 EP 4068593 A3 EP4068593 A3 EP 4068593A3 EP 22165390 A EP22165390 A EP 22165390A EP 4068593 A3 EP4068593 A3 EP 4068593A3
Authority
EP
European Patent Office
Prior art keywords
absolute
indexer
luminaire
stepper motor
sensing system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22165390.0A
Other languages
German (de)
French (fr)
Other versions
EP4068593A2 (en
Inventor
Pavel Jurik
Jindrich Vavrik
Josef Valchar
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robe Lighting sro
Original Assignee
Robe Lighting sro
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Robe Lighting sro filed Critical Robe Lighting sro
Publication of EP4068593A2 publication Critical patent/EP4068593A2/en
Publication of EP4068593A3 publication Critical patent/EP4068593A3/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/15—Adjustable mountings specially adapted for power operation, e.g. by remote control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/06—Controlling the distribution of the light emitted by adjustment of elements by movement of refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/14—Adjustable mountings
    • F21V21/30—Pivoted housings or frames
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/22—Control of step size; Intermediate stepping, e.g. microstepping
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/34—Monitoring operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D2205/00—Indexing scheme relating to details of means for transferring or converting the output of a sensing member
    • G01D2205/20—Detecting rotary movement
    • G01D2205/26—Details of encoders or position sensors specially adapted to detect rotation beyond a full turn of 360°, e.g. multi-rotation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/21—Devices for sensing speed or position, or actuated thereby
    • H02K11/215—Magnetic effect devices, e.g. Hall-effect or magneto-resistive elements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors rotating step by step
    • H02P8/40—Special adaptations for controlling two or more stepping motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
  • Control Of Position Or Direction (AREA)

Abstract

A luminaire includes a luminaire mechanism, a stepper motor, an absolute multi-turn rotational position sensing system, and a control system. The stepper motor moves the luminaire mechanism. The absolute multi-turn rotational position sensing system includes absolute rotational sensors that detect absolute positions of a cam indexer on the motor shaft and an indexer wheel coupled to the cam indexer. The indexer wheel rotates by a predetermined amount in response to one full rotation of the cam indexer. The control system determines an absolute position of the luminaire mechanism based on information from the absolute rotational sensors relating to the positions of the cam indexer and the indexer wheel. The control system receives a commanded position for the luminaire mechanism and causes the stepper motor to move the luminaire mechanism to the commanded position based on the absolute position of the luminaire mechanism.
EP22165390.0A 2021-03-31 2022-03-30 Absolute position sensing system for stepper motor mechanism Pending EP4068593A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US202163168913P 2021-03-31 2021-03-31

Publications (2)

Publication Number Publication Date
EP4068593A2 EP4068593A2 (en) 2022-10-05
EP4068593A3 true EP4068593A3 (en) 2022-10-12

Family

ID=80999923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22165390.0A Pending EP4068593A3 (en) 2021-03-31 2022-03-30 Absolute position sensing system for stepper motor mechanism

Country Status (3)

Country Link
US (1) US11774075B2 (en)
EP (1) EP4068593A3 (en)
CN (1) CN115143433B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5900930A (en) * 1997-10-21 1999-05-04 Eaton Corporation Angle sensor using a multi-pixel optical device
US7654693B2 (en) * 2008-03-17 2010-02-02 Martin Professional A/S Absolute fixture positioning
US20170284828A1 (en) * 2013-10-22 2017-10-05 Ultra Motion LLC Actuator position sensing
US10274175B1 (en) * 2018-01-04 2019-04-30 Electronic Theatre Controls, Inc. Systems and methods for controlling the position of a moving light fixture

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4777568A (en) * 1986-11-03 1988-10-11 Altman Stage Lighting Co. Low-inertial beam direction lighting system
KR20110061364A (en) * 2009-12-01 2011-06-09 현대자동차주식회사 Methods for controlling adaptive head-lamps
CN104991442B (en) * 2015-06-24 2018-03-13 北京工业大学 High-torque Rudder Servo System based on brushless electric machine driving
US11085440B2 (en) * 2015-09-02 2021-08-10 Project Phoenix, LLC System to pump fluid and control thereof
US9975036B2 (en) * 2015-12-22 2018-05-22 Brittney Rose Martino Delivery shoe with masking capability for card backs
US10116190B2 (en) * 2016-01-05 2018-10-30 Systemantics India Pvt. Ltd. Rotary positioning system
CN208222252U (en) * 2018-06-06 2018-12-11 郑远清 A kind of intelligent LED lighting lamp
CN109027785A (en) * 2018-07-05 2018-12-18 利辛县风雅颂机电科技有限公司 A kind of automatic adjustment angle night-light
US10848085B2 (en) * 2018-10-17 2020-11-24 Robe Lighting S.R.O. Sensorless homing system for stepper motor system
CN109539026B (en) * 2018-11-21 2020-10-30 重庆秉为科技有限公司 Intelligent LED tunnel lamp
EP3789669A1 (en) * 2019-09-03 2021-03-10 ROBE lighting s.r.o. Braking system for an automated luminaire
CN210319630U (en) * 2019-09-06 2020-04-14 中山市瑞普森照明有限公司 Electric lifting projection lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5900930A (en) * 1997-10-21 1999-05-04 Eaton Corporation Angle sensor using a multi-pixel optical device
US7654693B2 (en) * 2008-03-17 2010-02-02 Martin Professional A/S Absolute fixture positioning
US20170284828A1 (en) * 2013-10-22 2017-10-05 Ultra Motion LLC Actuator position sensing
US10274175B1 (en) * 2018-01-04 2019-04-30 Electronic Theatre Controls, Inc. Systems and methods for controlling the position of a moving light fixture

Also Published As

Publication number Publication date
US11774075B2 (en) 2023-10-03
CN115143433B (en) 2024-06-18
US20220221139A1 (en) 2022-07-14
CN115143433A (en) 2022-10-04
EP4068593A2 (en) 2022-10-05

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